JP2019040833A - Electric connector - Google Patents

Abstract

To provide an electric connector having an internal conductor of simple structure and low manufacturing cost, without reducing the strength of the internal conductor.SOLUTION: An electric connector has a first connector formed on one end side of a cylindrical shell, and a second connector formed on the other end side. The first connector includes a cylindrical first external conductor provided in the shell on one end side, and a hollow first internal conductor provided on the inside of the first external conductor via a first insulation member coaxially with the first external conductor. The second connector includes a cylindrical second external conductor provided in the shell on the other end side and connected electrically with the first external conductor, and a hollow second internal conductor provided on the inside of the second external conductor via a second insulation member coaxially with the second external conductor. The first and second internal conductors are coupled by a conductive coupling piece so as to be located coaxially, and the coupling piece is fixed in the shell by a fixing member of hardened resin.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electrical connector.

  Conventionally, a conversion electrical connector (conversion adapter) (hereinafter also simply referred to as an electrical connector) for converting a coaxial connector used for connection of a coaxial cable or the like into a different type of coaxial connector is already known.

  Specifically, in this type of electrical connector, two coaxial connectors are connected in opposite directions, one connector is connected to the other connector, and the other connector is connected to another connector. Are to be connected. Each coaxial connector provided in series has an outer conductor and an inner conductor, and the outer conductor and the inner conductor are insulated via an insulating member. Further, the outer conductors and the inner conductors of the two coaxial connectors provided in series are electrically connected. When the mating connector is connected to the coaxial connector, the outer conductors and the inner conductors of the coaxial connector and the mating connector are electrically connected.

  As this type of electrical connector, there is one in which the inner conductor of one coaxial connector and the inner conductor of the other coaxial connector are integrally formed from the same material (for example, see Patent Document 1).

  Patent Document 1 discloses an electrical connector for connector conversion in which the inner conductor of one coaxial connector has a cylindrical shape and the inner conductor of the other coaxial connector has a cylindrical shape. These inner conductors are formed of the same material and are coaxially provided inside the cylindrical outer conductor in a state of being insulated from the outer conductor.

JP 2004-342571 A

  However, the conventional electrical connector as described in Patent Document 1 has a problem that the manufacturing cost of the internal conductor is high.

  Specifically, in the conventional internal conductor, one end of one columnar member is configured as the internal conductor of one coaxial connector, and the other end is configured as the internal conductor of the other coaxial connector. And in order to receive the internal conductor of the other party connector, it has a structure where the insertion hole etc. were formed in the end of this cylindrical member in the direction of an axis. The inner conductor having such a structure has a relatively high strength, but has been manufactured by cutting or die casting, so that the manufacturing cost is high.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electrical connector having an internal conductor with a simple structure at a low manufacturing cost without reducing the strength of the internal conductor. And

  In order to achieve the above object, an electrical connector according to the present invention is a coaxial connector in which a first connector is formed on one end of a cylindrical shell and a second connector is formed on the other end of the shell. The first connector includes a cylindrical first outer conductor provided inside the one end side of the shell, and a first insulating member inside the first outer conductor via the first insulating member. And a hollow first inner conductor provided coaxially with the first outer conductor, the second connector being provided inside the other end of the shell, and the first outer conductor A cylindrical second outer conductor electrically connected to the conductor, and a hollow provided coaxially with the second outer conductor inside the second outer conductor via a second insulating member A second inner conductor, wherein the first inner conductor and the second inner conductor are coaxial. Are connected by a conductive connecting piece to be located, said connecting piece is characterized in that it is fixed by a fixing member formed by curing a resin in the shell.

  As described above, in the electrical connector of the present invention, the hollow first inner conductor and the hollow second inner conductor are coupled by the conductive coupling piece so as to be coaxially positioned, There is no solid columnar part and the structure is simple. For this reason, it can manufacture by the bending process (press process) etc. of a metal plate material, and can reduce manufacturing cost compared with the prior art which uses a cutting process or die-casting.

  In the electrical connector of the present invention, the connecting piece is fixed in the shell by a fixing member obtained by curing resin. Thereby, the intensity | strength of the part of a connection piece with comparatively weak intensity | strength among internal conductors can be raised.

  Therefore, this invention can solve the subject of providing the electrical connector which has an internal conductor of the simple structure with low manufacturing cost, without reducing the intensity | strength of an internal conductor.

  In the electrical connector of the present invention, the first inner conductor, the second inner conductor, and the connecting piece may be an integrally molded product made of a single metal plate as a whole.

  With this configuration, the electrical connector of the present invention can be manufactured by bending (pressing) a single metal plate material without using cutting or die-casting as in the past, and the manufacturing cost is lower than before. can do.

  The electrical connector of the present invention includes a flange provided on an outer periphery of the shell, and a seal member housed in a groove formed on one surface of the flange so as to surround the shell, and the fixing member is the shell The space inside the cylinder may be divided into airtight or liquid tightly.

  With this configuration, the electrical connector of the present invention can prevent gas or liquid water from entering from one connector side to the other connector side in the shell, and between the flange and the panel to which the flange is attached. Gas or liquid water can be prevented from entering from the gap.

  In the electrical connector of the present invention, it is preferable that the maximum outer diameter of the first outer conductor and the maximum outer diameter of the first insulating member are not more than the minimum inner diameter on the other end side of the shell. .

  With this configuration, the electrical connector of the present invention can be assembled with all the components from one opening side (the other end side) of the shell. For this reason, it is not necessary to perform an operation such as turning the shell upside down during the assembly, which facilitates manufacture.

  ADVANTAGE OF THE INVENTION According to this invention, the electrical connector which has an internal conductor of the simple structure with low manufacturing cost can be provided, without reducing the intensity | strength of an internal conductor.

(A) is the perspective view of the electrical connector which concerns on embodiment of this invention, (b) is the perspective view which looked at the electrical connector of (a) upside down. It is sectional drawing of Fig.1 (a). It is a disassembled perspective view of the electrical connector shown in FIG. (A) is a perspective view of the shell shown in FIG. 3, (b) is the sectional drawing. (A) is a perspective view of the 1st outer conductor shown in FIG. 3, (b) is the sectional drawing. (A) is a perspective view of the 1st insulating member shown in FIG. 3, (b) is the sectional drawing. (A) is a perspective view of the 2nd outer conductor shown in FIG. 3, (b) is the sectional drawing. (A) is a perspective view of the 2nd insulating member shown in FIG. 3, (b) is the sectional drawing. (A) is a perspective view of the internal conductor shown in FIG. 3, (b) is a plan view as viewed from the arrow A in (a), (c) is a bottom view as viewed from the arrow B in (a), (d ) Is a perspective view of the arrow C in (a), and (e) is an enlarged perspective view of an S portion in (d). (A) is a side view of the internal conductor shown in FIG. 9, and (b) is a cross-sectional view taken along the line XX of (a). (A) is a perspective view of the fixing member shown in FIG. 3, (b) is the sectional view. It is an isometric view explanatory drawing which shows the usage example of the electrical connector which concerns on embodiment of this invention.

  Hereinafter, an electrical connector according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, an electrical connector 1 according to an embodiment of the present invention has a first connector 10 (SMB connector) formed on one end side of a shell 2 made of a cylindrical conductor, and the other end of the shell 2. A second connector 20 (FAKRA connector) is formed on the side. In addition, the electrical connector 1 includes a mounting flange 6 on the outer periphery of the shell 2.

  In the present embodiment, the first connector 10 is an SMB connector and the second connector 20 is a FAKRA connector, but the type of connector is not limited to this, and any type of connector can be employed. The first connector 10 and the second connector 20 may be different types or the same type of connectors.

  Moreover, in this embodiment, although the 1st connector 10 is a female connector and the 2nd connector 20 is a male connector, the combination of a male type and a female type is not limited to this. The first connector 10 may be a male connector, the second connector 20 may be a female connector, and both connectors may be male or female.

  For example, as shown in FIG. 12, the electrical connector 1 is attached to a rear case 30 of a vehicle-mounted camera with screws 33. In the electrical connector 1 shown in FIG. 12, the first connector 10 is fitted with a mating connector 32 provided on a substrate 31 in the rear case 30. The second connector 20 is adapted to be fitted with a mating connector attached to the end of the coaxial cable. This coaxial cable is connected to other devices such as an electronic control unit (ECU). Thus, the electrical connector 1 is configured to electrically connect the wiring on the substrate 31 on the vehicle-mounted camera side and the coaxial cable connected to another device by connector fitting.

  As shown in FIG. 2, the first connector 10 according to the present embodiment includes a cylindrical first outer conductor 11, a hollow first inner conductor 13, a first outer conductor 11, and a first outer conductor 11. A first insulating member 12 that is interposed between the inner conductor 13 and insulates the inner conductor 13 is provided.

  Specifically, the first outer conductor 11 is provided inside the one end side (opening 2 h side) of the shell 2 in a state of being in contact with and electrically connected (conductive) to the shell 2. The first inner conductor 13 is provided coaxially with the first outer conductor 11 inside the first outer conductor 11.

  The second connector 20 is interposed between the cylindrical second outer conductor 21, the hollow second inner conductor 23, and the second outer conductor 21 and the second inner conductor 23. And a second insulating member 22 that insulates.

Specifically, the second outer conductor 21 is provided inside the other end side (opening 2i side) of the shell 2 in a state of being in electrical contact (conduction) with the shell 2. That is, the second outer conductor 21 is electrically connected to the first outer conductor 11 via the shell 2. The second outer conductor 21 is provided coaxially with the first outer conductor 11. The second inner conductor 23 is provided coaxially with the second outer conductor 21 inside the second outer conductor 21.
Hereinafter, each component will be described.

(shell)
As shown in FIG. 4, the shell 2 is a cylindrical part made of a conductive material such as metal, and has an opening 2 h at one end of the cylindrical portion and an opening 2 i at the other end. The shell 2 has a first cylinder part 2a, a second cylinder part 2b, a third cylinder part 2c, and a fourth cylinder part 2d in this order from the opening 2h side. Here, assuming that the inner diameters of the first to fourth cylinder portions 2a, 2b, 2c, and 2d are D1, D2, D3, and D4, respectively, the relationship of D1> D2 and D2 <D3 <D4 is satisfied. That is, a step portion 2f is formed between the second tube portion 2b and the third tube portion 2c, and a step portion 2g is formed between the third tube portion 2c and the fourth tube portion 2d. An annular convex portion 2e that protrudes inward from the cylinder is formed between the first cylindrical portion 2a and the second cylindrical portion 2b.

  A flange 6 is provided on the outer periphery of the cylinder of the shell 2. The flange 6 is provided with two screw holes 6a with counterbore 6b. An annular groove 6c is formed on one surface of the flange 6 (the surface on the opening 2h side) so as to surround the shell 2 and close to the outer periphery of the first tube portion 2a. An O-ring 7 as an example of an annular sealing member can be accommodated in the groove 6c.

  The shell 2 has a lock portion 8 on the outer surface of the cylinder. The lock portion 8 is engaged with a lock receiving portion provided on the mating connector side to fix the mating between the mating connector and the second connector 20.

(First outer conductor)
As shown in FIG. 5, the first outer conductor 11 has a cylindrical body 11a. On the outer peripheral surface of the upper end portion of the cylindrical body 11a, four protruding portions 11c protruding outward from the cylinder are formed at equal intervals in the circumferential direction. The projecting portion 11 c abuts on the annular convex portion 2 e of the shell 2, so that the first outer conductor 11 can be arranged and fixed at an appropriate position in the shell 2.

  The cylindrical body 11a of the first outer conductor 11 is formed with four split grooves 11e extending in the axial direction except for the upper end portion at equal intervals in the circumferential direction. As a result, a portion sandwiched between two adjacent split grooves 11e can be elastically displaced in a direction perpendicular to the axial direction.

  Further, at the lower end portion of the cylindrical body 11a of the first outer conductor 11, a protruding portion 11f protruding inward of the cylinder is provided one by one in a portion sandwiched between two adjacent split grooves 11e. . Thereby, the cylinder 11a can come into contact with the outer conductor of the mating connector of the first connector 10 more reliably.

(First insulating member)
As shown in FIG. 6, the first insulating member 12 has a cylindrical portion 12a having a large outer diameter, a cylindrical portion 12b having a medium outer diameter, and a cylindrical portion 12c having a small outer diameter in order from the top of the figure. . That is, assuming that the outer diameters of the cylindrical portions 12a, 12b, and 12c are L1, L2, and L3, respectively, the relationship L1>L2> L3 is satisfied. Further, the first insulating member 12 has an axial through hole 12d formed at the center thereof, and the first inner conductor 13 is accommodated therein.

(Second outer conductor)
As shown in FIG. 7, the second outer conductor 21 integrally includes a cylindrical portion 21a and a relatively thick annular convex portion 21b projecting outward from the cylinder at the lower end thereof. A through hole 21 c extending in the axial direction is formed at the center of the second outer conductor 21. A linear convex portion 21d is formed on the outer peripheral surface of the annular convex portion 21b. Thereby, when the 2nd outer conductor 21 is assembled | attached in the shell 2, the cyclic | annular convex part 21b can contact the shell 2 more reliably.

(Second insulating member)
As shown in FIG. 8, the second insulating member 22 integrally includes a columnar portion 22a and an annular convex portion 22b projecting outward from the cylinder at the lower end thereof. Further, in the center of the second insulating member 22, a large-diameter hole portion 22 c and a small-diameter hole portion 22 d extending in the axial direction are formed in order from the top in the figure, and the second insulating member 22 is connected to the second insulating member 22. It penetrates. The second inner conductor 23 is accommodated in the hole 22c and the hole 22d.

(Inner conductor)
As shown in FIGS. 9 and 10, the inner conductor 3 has a first inner conductor 13 on the first connector 10 side and a second inner conductor 23 on the second connector 20 side. The first inner conductor 13 and the second inner conductor 23 are connected by a conductive connecting piece 3a so as to be positioned coaxially. Specifically, the first inner conductor 13, the second inner conductor 23, and the connecting piece 3a are integrally formed as a whole by bending a single metal plate.

  As shown in FIGS. 9 and 10, the first inner conductor 13 has a female contact 13a formed at the lower end of the cylindrical portion 13c. The female contact 13a has two split grooves 13b formed in the axial direction, and the distal end side (opening 13e side) of the female contact 13a is inclined inward. Thus, the male contact of the mating connector can be elastically held in the female contact 13a.

  As shown in FIGS. 9 and 10, the second inner conductor 23 has a small diameter cylindrical portion 23b that functions as a male contact and a large diameter cylindrical portion 23d for impedance adjustment. A pointed head 23a is formed at the tip of the small diameter cylindrical portion 23b. The small-diameter cylindrical portion 23b and the large-diameter cylindrical portion 23d are connected via an inclined step portion 23c. The small-diameter cylindrical portion 23b and the pointed head portion 23a are fitted as female contacts of a mating connector as male contacts.

  As shown in FIGS. 9A and 10A, the connecting piece 3 a has a plate shape or a strip shape, and has an upper end portion of the first inner conductor 13 and a lower end portion of the second inner conductor 23. Are linked. Specifically, the connecting piece 3a includes a part of the entire upper end of the cylindrical wall of the first inner conductor 13 (cylindrical portion 13c) and the cylindrical wall of the second inner conductor 23 (large-diameter cylindrical portion 23d). A part of the entire circumference of the lower end is connected. That is, the connecting piece 3 a is provided off the axis of the first and second inner conductors 13 and 23.

  As shown in FIG. 10A, the connecting piece 3a is inclined with respect to the axis. In this way, by inclining the connecting piece 3a provided off the axis, even if the diameter of the first inner conductor 13 and the diameter of the second inner conductor 23 are different, both are coaxial. Can be arranged.

  As shown in FIG. 9 (e), two plate-like convex pieces 3 b extending in the direction perpendicular to the axial direction (the side of the joint 3 e) are formed on the first inner conductor 13. When assembling the electrical connector 1, the plate-like convex piece 3 b is brought into contact with the upper surface 12 e of the first insulating member 12 and fixed by the fixing member 4, so that the inner conductor 3 is securely fixed at an appropriate position in the shell 2. It can be done.

  Further, as shown in FIG. 9 (e), at the upper part of the first inner conductor 13, the lid 3 c cut out from the circular hole 3 d opens the upper end opening of the cylindrical portion 13 c of the first inner conductor 13. It is closed. Thereby, when the electrical connector 1 is assembled, it is possible to prevent the resin forming the fixing member 4 from flowing into the cylindrical portion 13c.

  Further, as shown in FIG. 10A, a cut portion 13d is formed in the side wall of the cylindrical portion 13c of the first inner conductor 13, and the upper portion of the cut portion 13d is slightly overhanging outward. . This makes it difficult for the first inner conductor 13 inserted into the through hole 12d of the first insulating member 12 to be removed from the through hole 12d during assembly.

(Fixing member)
As shown in FIG. 11, the fixing member 4 is a cylindrical member obtained by curing an insulating resin in the shell 2, surrounds the periphery of the connection piece 3 a of the internal conductor 3, and places the connection piece 3 a in the shell 2. While fixing, the connection piece 3a is reinforced. The fixing member 4 has a concave portion 4d on the lower surface 4b side, and the plate-like convex piece 3b of the internal conductor 3 is accommodated and fixed in the concave portion 4d. The fixing member 4 has an annular recess 4c on the upper surface 4a side, and the lower end portion of the second inner conductor 23 is accommodated and fixed in the annular recess 4c. As a material constituting the fixing member 4, a resin (for example, epoxy resin) or various adhesives that exhibits appropriate fluidity when filled into the shell 2 and has excellent strength and sealing properties after curing is used. it can.

  As shown in FIG. 2, the fixing member 4 bisects the space inside the cylinder of the shell 2 in an airtight or liquid-tight manner. Specifically, the first connector 10 and the second connector 20 are electrically connected within the shell 2, but are separated (sealed) in an airtight or liquid tight manner by the fixing member 4. Yes.

  In addition, the first outer conductor 11 and the first insulating member 12 that are constituent elements of the first connector 10 have a maximum outer diameter that is less than or equal to a minimum inner diameter inside the shell 2 on the second connector 20 side. It is comprised so that. Specifically, the outer diameter W1 (see FIG. 5) of the protruding portion 11c of the first outer conductor 11 and the outer diameter W2 (see FIG. 6) of the cylindrical portion 12a of the first insulating member 12 are the shell. 2 is smaller than the inner diameters of the third cylindrical portion 2c and the fourth cylindrical portion 2d. In short, the outer diameter of the component of the first connector 10 and the outer diameter of the shell 2 can be assembled so that the component of the first connector 10 can be inserted and assembled from the opening 2i on the second connector 20 side of the shell 2. What is necessary is just to set the internal diameter inside a cylinder.

  Next, with reference to FIG. 3 etc., the assembly method of the electrical connector 1 which concerns on embodiment of this invention is demonstrated. The assembly procedure is as follows.

(1) First, the first outer conductor 11 is inserted from the opening 2 i on the second connector 20 side of the shell 2, and the lower surface 11 d of the protruding portion 11 c of the first outer conductor 11 is connected to the annular convex portion of the shell 2. 2e is fixed in contact with the upper surface.

(2) Next, the first insulating member 12 is inserted from the opening 2 i on the second connector 20 side of the shell 2, and the cylindrical portions 12 b and 12 c of the first insulating member 12 are placed inside the first outer conductor 11. While accommodating, the lower surface 12f of the cylindrical part 12a is contact | abutted to the upper end surface 11b of the 1st outer conductor 11, and is fixed.

(3) Next, the first inner conductor 13 of the inner conductor 3 is inserted into the through hole 12d of the first insulating member 12 from the opening 2i on the second connector 20 side of the shell 2, and the plate shape of the inner conductor 3 is reached. The lower end surface of the convex piece 3b is fixed in contact with the upper surface 12e of the first insulating member 12.

(4) Next, a required amount of fluid resin is injected onto the upper surface 12e of the first insulating member 12, so that the connecting piece 3a, the plate-like convex piece 3b, etc. of the inner conductor 3 are immersed in the resin, and the state To cure the resin. Since the upper end opening of the first inner conductor 13 is closed by the lid 3c, the resin does not enter the hollow interior of the first inner conductor 13 when the resin is injected.

(5) Next, the second insulating member 22 is inserted from the opening 2 i on the second connector 20 side of the shell 2, and the lower surface 22 e of the annular convex portion 22 b of the second insulating member 22 is inserted into the step portion of the shell 2. The upper surface of 2f and the upper surface 4a of the fixing member 4 having the cured resin are brought into contact with and fixed. At this time, the second inner conductor 23 of the inner conductor 3 is inserted into the small-diameter hole 22d of the second insulating member 22, and the small-diameter cylindrical portion 23b (male contact) of the second inner conductor 23 is the first. The insulating member 22 of No. 2 is projected from the large-diameter hole 22c.

(6) Finally, the second outer conductor 21 is inserted from the opening 2i on the second connector 20 side of the shell 2, and the lower surface 21e of the annular convex portion 21b of the second outer conductor 21 is inserted into the second insulation. While making it contact | abut to the upper surface 22f of the cyclic | annular convex part 22b of the member 22, the side surface of the cyclic | annular convex part 21b of the 2nd outer conductor 21 is contact | abutted and fixed to the internal peripheral surface of the 3rd cylinder part 2c of the shell 2. . At this time, the cylindrical portion 22 a of the second insulating member 22 is fitted into the through hole 21 c of the second outer conductor 21. This completes the assembly.

  When attaching the electrical connector 1 to a case or the like, an O-ring 7 is mounted in the groove 6c of the flange 6. Further, in the above assembling procedure, the respective constituent elements are sequentially assembled to the shell 2, but may be assembled by being inserted into the shell 2 in a state where a plurality of constituent elements are assembled. For example, the first insulating member 12 may be inserted into the shell 2 and assembled in the state where the first insulating member 12 is assembled to the first outer conductor 11.

  Next, functions and effects will be described.

  As described above, the electrical connector 1 according to the present embodiment is coupled by the conductive coupling piece 3a so that the hollow first inner conductor 13 and the hollow second inner conductor 23 are positioned coaxially. ing. That is, there is no solid columnar portion as in the prior art, and the configuration is simple. For this reason, it can manufacture by the bending process (press process) etc. of metal board | plate materials, and can reduce manufacturing cost compared with the prior art which uses a cutting process or die-casting.

  Further, in the electrical connector 1 according to the present embodiment, the connecting piece 3a is fixed in the shell 2 by a fixing member 4 obtained by curing resin. Thereby, the intensity | strength of the part of the connection piece 3a with comparatively weak intensity | strength among the internal conductors 3 can be raised. Therefore, the electrical connector 1 according to the present embodiment does not decrease the strength of the internal conductor 3 while the internal connector 3 has a simple structure with a low manufacturing cost.

Moreover, in the electrical connector 1 according to the present embodiment, the first inner conductor 13, the second inner conductor 23, and the connecting piece 3a are integrally formed from one metal plate material as a whole.
With this configuration, the electrical connector 1 of the present embodiment can be manufactured by bending (pressing) one metal plate material or the like without using cutting or die casting as in the past. Can be reduced.

  The electrical connector 1 according to the present embodiment includes a flange 6 provided on the outer periphery of the shell 2 and an O-ring 7 accommodated in a groove 6c formed on one surface of the flange 6 so as to surround the shell 2. The fixing member 4 is configured to bisect the space inside the cylinder of the shell 2 in an airtight or liquid tight manner. With this configuration, the electrical connector 1 according to this embodiment can prevent gas or liquid water from entering the shell 2 from one connector side to the other connector side, and the flange 6 and the flange 6 It is possible to prevent gas or liquid water from entering from a gap with a panel (rear case 30 or the like) to which is attached.

  In the electrical connector 1 according to this embodiment, the maximum outer diameter of the first outer conductor 11 and the maximum outer diameter of the first insulating member 12 are equal to or smaller than the minimum inner diameter on the other end side of the shell 2. Yes. With this configuration, the electrical connector 1 of this embodiment can be assembled with all the components from the one opening 2i side (the other end side) of the shell 2. For this reason, it is not necessary to perform an operation such as turning the shell 2 upside down during the assembly, so that the manufacturing is facilitated.

(Other embodiments)
In the above embodiment, the shell 2 made of a conductor is used, but an insulating shell made of resin or the like may be used. In this case, a conductive connecting member for electrically connecting the first outer conductor 11 and the second outer conductor 21 is provided, or the first outer conductor 11 and the second outer conductor 21 are provided. May be configured as a single unit.

  As described above, the present invention has the effect of having an internal conductor with a simple structure with a low manufacturing cost without reducing the strength of the internal conductor, and is useful for electrical connectors in general.

DESCRIPTION OF SYMBOLS 1 Electrical connector 2 Shell 3 Internal conductor 3a Connection piece 3b Plate-shaped convex piece 4 Fixing member 6 Flange 7 O ring (annular seal member)
8 Lock portion 10 First connector 11 First outer conductor 12 First insulating member 13 First inner conductor 20 Second connector 21 Second outer conductor 22 Second insulating member 23 Second inner conductor 30 Rear case 31 Substrate 32 Mating connector

Claims (4)

An electrical connector in which a first connector is formed on one end of a cylindrical shell and a second connector is formed on the other end of the shell,
The first connector includes a cylindrical first outer conductor provided inside the one end side of the shell, and a first insulating member disposed inside the first outer conductor via a first insulating member. A hollow first inner conductor provided coaxially with the outer conductor,
The second connector is provided inside the shell on the other end side and is electrically connected to the first outer conductor, and a cylindrical second outer conductor; and the second outer conductor A hollow second inner conductor provided coaxially with the second outer conductor via a second insulating member inside the conductor,
The first inner conductor and the second inner conductor are connected by a conductive connecting piece so as to be positioned coaxially, and the connecting piece is fixed in the shell by a fixing member cured with resin. An electrical connector characterized by being.   2. The electrical connector according to claim 1, wherein the first inner conductor, the second inner conductor, and the connecting piece are integrally formed of a single metal plate as a whole.   A flange provided on an outer periphery of the shell; and a seal member housed in a groove formed on one surface of the flange so as to surround the shell, wherein the fixing member seals a space inside the cylinder of the shell. The electrical connector according to claim 1, wherein the electrical connector is densely divided into two.   The maximum outer diameter of the first outer conductor and the maximum outer diameter of the first insulating member are equal to or less than a minimum inner diameter on the other end side of the shell. The electrical connector according to claim 1.

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